Vehicle Temperature Monitoring with arduino and DHT11 Temperature sensor
Car battery voltage monitoring with arduino
Car autonomous head light control with arduino uno
Inside circuitry of car monitoring and controlling system
Whole of the circuit and arduino is powered by car battery. On the above vero board circuit i am dropping some voltage using a resistor and then supplying the rest to arduino. 3v relay supplies power to car head light relay which in turn switches on and off the head light. I did not used any external power supply. Only utilized car battery to control each and every thing.
Final end shape diy car automation project
Arduino Uno Circuit Connections for car automation using arduino
Hurdles faced after operating of the circuit in real environment
Another error that i found is when we manually switch on the head lights and also the head lights are switched on by the arduino module. The module does not switches off. Its because the current founds a path to flow from the manual side in to the board. I eliminated this error by connecting a diode in series.